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All results from a given calculation for COH (Hydroxymethylidyne)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-113.671334
Energy at 298.15K-113.671176
HF Energy-113.582404
Nuclear repulsion energy25.701083
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3319 3150 23.65 370.29 0.32 0.49
2 A' 1393 1322 44.87 6.64 0.75 0.86
3 A' 1150 1092 101.12 31.43 0.47 0.64

Unscaled Zero Point Vibrational Energy (zpe) 2931.1 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 2782.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP/6-31G*
ABC
22.86979 1.37462 1.29668

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.060 0.798 0.000
O2 0.060 -0.487 0.000
H3 -0.845 -0.887 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.28521.9124
O21.28520.9899
H31.91240.9899

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.006      
2 O -0.435      
3 H 0.428      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.712 -2.085 0.000 2.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.652 1.601 -0.001
y 1.601 -12.968 -0.005
z -0.001 -0.005 -10.952
Traceless
 xyz
x 1.308 1.601 -0.001
y 1.601 -2.166 -0.005
z -0.001 -0.005 0.858
Polar
3z2-r21.717
x2-y22.316
xy1.601
xz-0.001
yz-0.005


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.721 0.413 0.000
y 0.413 2.506 -0.000
z 0.000 -0.000 1.315


<r2> (average value of r2) Å2
<r2> 14.469
(<r2>)1/2 3.804